The Blue parenthesis of the master of art Nicola Vetrano significantly represents both the initial and the final period of the artist’s life. The dark tones of the blue, in contrast with the smaller portions of the lighter tones of white, red and beige, dirtied the first and the last palettes of his pictorial career. This period was a sunrise and a sunset for Nicola that, after a whole life of a colour, space and technical experimentalism, returns to the deepest colour, the blue: simultaneously cathartic in supporting self-exploration, and without limits, thanks to the grandeur of the infinite marine and sidereal spaces.